<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>test</title>
    <script type="text/javascript" src="/js/jquery-easyui-1.4.1/jquery.min.js" ></script>
</head>


<body>
<script>
    alert($)  ;
    $.ajax({
        type : "POST"  ,
        dataType :  "json"   ,
        url : "http://localhost:8081/json.jsp",
        success :  function(data){
            alert(data.abc )  ;  //能够正常返回json字符串
        }

    })
</script>
</body>
</html>